they have no hope. >> thank you for joining us. in pakistan people say government has murdered two more health workers involved in the national polio vaccination campaign. it is a shocking trend that has prompted international health agencies to suspend vaccination efforts, and while the taliban has claimed in the past such programs are a western ploy, they are denying any involvement in the current attacks. >> these health workers were the latest targets in three separate attacks in northwest pakistan. at least two people were killed and others wounded. the shootings followed similar incidents in pakistan's largest city of karachi, where four female health workers were shot dead. across the country, authorities have suspended the polio eradication drive for the time being. many who want their children vaccinated are disappointed. >> i want to get my son back, but there is no one here. >> we headed to a carracci neighborhood, where a health worker was shot dead on tuesday. this is a slum area often considered too dangerous for the